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<a name="libcroco-cr-cascade"></a><div class="titlepage"></div>
<div class="refnamediv"><table width="100%"><tr>
<td valign="top">
<h2><span class="refentrytitle"><a name="libcroco-cr-cascade.top_of_page"></a>cr-cascade</span></h2>
<p>cr-cascade</p>
</td>
<td class="gallery_image" valign="top" align="right"></td>
</tr></table></div>
<div class="refsect1">
<a name="libcroco-cr-cascade.functions"></a><h2>Functions</h2>
<div class="informaltable"><table width="100%" border="0">
<colgroup>
<col width="150px" class="functions_return">
<col class="functions_name">
</colgroup>
<tbody>
<tr>
<td class="function_type">
<a class="link" href="libcroco-cr-cascade.html#CRCascade" title="struct CRCascade"><span class="returnvalue">CRCascade</span></a> *
</td>
<td class="function_name">
<a class="link" href="libcroco-cr-cascade.html#cr-cascade-new" title="cr_cascade_new ()">cr_cascade_new</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<a class="link" href="libcroco-cr-statement.html#CRStyleSheet" title="CRStyleSheet"><span class="returnvalue">CRStyleSheet</span></a> *
</td>
<td class="function_name">
<a class="link" href="libcroco-cr-cascade.html#cr-cascade-get-sheet" title="cr_cascade_get_sheet ()">cr_cascade_get_sheet</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">enum <a class="link" href="libcroco-cr-utils.html#CRStatus" title="enum CRStatus"><span class="returnvalue">CRStatus</span></a>
</td>
<td class="function_name">
<a class="link" href="libcroco-cr-cascade.html#cr-cascade-set-sheet" title="cr_cascade_set_sheet ()">cr_cascade_set_sheet</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="libcroco-cr-cascade.html#cr-cascade-ref" title="cr_cascade_ref ()">cr_cascade_ref</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="libcroco-cr-cascade.html#cr-cascade-unref" title="cr_cascade_unref ()">cr_cascade_unref</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">void</span>
</td>
<td class="function_name">
<a class="link" href="libcroco-cr-cascade.html#cr-cascade-destroy" title="cr_cascade_destroy ()">cr_cascade_destroy</a> <span class="c_punctuation">()</span>
</td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect1">
<a name="libcroco-cr-cascade.other"></a><h2>Types and Values</h2>
<div class="informaltable"><table width="100%" border="0">
<colgroup>
<col width="150px" class="name">
<col class="description">
</colgroup>
<tbody>
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<td class="datatype_keyword">struct</td>
<td class="function_name"><a class="link" href="libcroco-cr-cascade.html#CRCascade" title="struct CRCascade">CRCascade</a></td>
</tr>
<tr>
<td class="datatype_keyword"> </td>
<td class="function_name"><a class="link" href="libcroco-cr-cascade.html#CRCascadePriv" title="CRCascadePriv">CRCascadePriv</a></td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect1">
<a name="libcroco-cr-cascade.description"></a><h2>Description</h2>
</div>
<div class="refsect1">
<a name="libcroco-cr-cascade.functions_details"></a><h2>Functions</h2>
<div class="refsect2">
<a name="cr-cascade-new"></a><h3>cr_cascade_new ()</h3>
<pre class="programlisting"><a class="link" href="libcroco-cr-cascade.html#CRCascade" title="struct CRCascade"><span class="returnvalue">CRCascade</span></a> *
cr_cascade_new (<em class="parameter"><code><a class="link" href="libcroco-cr-statement.html#CRStyleSheet" title="CRStyleSheet"><span class="type">CRStyleSheet</span></a> *a_author_sheet</code></em>,
                <em class="parameter"><code><a class="link" href="libcroco-cr-statement.html#CRStyleSheet" title="CRStyleSheet"><span class="type">CRStyleSheet</span></a> *a_user_sheet</code></em>,
                <em class="parameter"><code><a class="link" href="libcroco-cr-statement.html#CRStyleSheet" title="CRStyleSheet"><span class="type">CRStyleSheet</span></a> *a_ua_sheet</code></em>);</pre>
<p>Constructor of the <a class="link" href="libcroco-cr-cascade.html#CRCascade" title="struct CRCascade"><span class="type">CRCascade</span></a> class.
Note that all three parameters of this
method are ref counted and their refcount is increased.
Their refcount will be decreased at the destruction of
the instance of <a class="link" href="libcroco-cr-cascade.html#CRCascade" title="struct CRCascade"><span class="type">CRCascade</span></a>.
So the caller should not call their destructor. The caller
should call their ref/unref method instead if it wants</p>
<p>Returns the newly built instance of CRCascade or NULL if
an error arose during constrution.</p>
<div class="refsect3">
<a name="id-1.2.4.6.2.6"></a><h4>Parameters</h4>
<div class="informaltable"><table width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>a_author_sheet</p></td>
<td class="parameter_description"><p>the author origin style sheet.  May be NULL.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>a_user_sheet</p></td>
<td class="parameter_description"><p>the user origin style sheet.  May be NULL.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>a_ua_sheet</p></td>
<td class="parameter_description"><p>the user agent origin style sheet.  May be NULL.</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="cr-cascade-get-sheet"></a><h3>cr_cascade_get_sheet ()</h3>
<pre class="programlisting"><a class="link" href="libcroco-cr-statement.html#CRStyleSheet" title="CRStyleSheet"><span class="returnvalue">CRStyleSheet</span></a> *
cr_cascade_get_sheet (<em class="parameter"><code><a class="link" href="libcroco-cr-cascade.html#CRCascade" title="struct CRCascade"><span class="type">CRCascade</span></a> *a_this</code></em>,
                      <em class="parameter"><code><span class="type">enum CRStyleOrigin</span> a_origin</code></em>);</pre>
<p>Gets a sheet, part of the cascade.
Note that the returned stylesheet
is refcounted so if the caller wants
to manage it's lifecycle, it must use
<a class="link" href="libcroco-cr-stylesheet.html#cr-stylesheet-ref" title="cr_stylesheet_ref ()"><code class="function">cr_stylesheet_ref()</code></a>/<a class="link" href="libcroco-cr-stylesheet.html#cr-stylesheet-unref" title="cr_stylesheet_unref ()"><code class="function">cr_stylesheet_unref()</code></a> instead
of the <a class="link" href="libcroco-cr-stylesheet.html#cr-stylesheet-destroy" title="cr_stylesheet_destroy ()"><code class="function">cr_stylesheet_destroy()</code></a> method.
Returns the style sheet, or NULL if it does not
exist.</p>
<div class="refsect3">
<a name="id-1.2.4.6.3.5"></a><h4>Parameters</h4>
<div class="informaltable"><table width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>a_this</p></td>
<td class="parameter_description"><p>the current instance of <a class="link" href="libcroco-cr-cascade.html#CRCascade" title="struct CRCascade"><span class="type">CRCascade</span></a>.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>a_origin</p></td>
<td class="parameter_description"><p>the origin of the style sheet as
defined in the css2 spec in chapter 6.4.
Gets a given origin sheet.</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="cr-cascade-set-sheet"></a><h3>cr_cascade_set_sheet ()</h3>
<pre class="programlisting">enum <a class="link" href="libcroco-cr-utils.html#CRStatus" title="enum CRStatus"><span class="returnvalue">CRStatus</span></a>
cr_cascade_set_sheet (<em class="parameter"><code><a class="link" href="libcroco-cr-cascade.html#CRCascade" title="struct CRCascade"><span class="type">CRCascade</span></a> *a_this</code></em>,
                      <em class="parameter"><code><a class="link" href="libcroco-cr-statement.html#CRStyleSheet" title="CRStyleSheet"><span class="type">CRStyleSheet</span></a> *a_sheet</code></em>,
                      <em class="parameter"><code><span class="type">enum CRStyleOrigin</span> a_origin</code></em>);</pre>
<p>Sets a stylesheet in the cascade</p>
<p>Returns CR_OK upon successfull completion, an error
code otherwise.</p>
<div class="refsect3">
<a name="id-1.2.4.6.4.6"></a><h4>Parameters</h4>
<div class="informaltable"><table width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>a_this</p></td>
<td class="parameter_description"><p>the current instance of <a class="link" href="libcroco-cr-cascade.html#CRCascade" title="struct CRCascade"><span class="type">CRCascade</span></a>.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>a_sheet</p></td>
<td class="parameter_description"><p>the stylesheet to set.</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>a_origin</p></td>
<td class="parameter_description"><p>the origin of the stylesheet.</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="cr-cascade-ref"></a><h3>cr_cascade_ref ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
cr_cascade_ref (<em class="parameter"><code><a class="link" href="libcroco-cr-cascade.html#CRCascade" title="struct CRCascade"><span class="type">CRCascade</span></a> *a_this</code></em>);</pre>
<p>Increases the reference counter of the current instance
of <a class="link" href="libcroco-cr-cascade.html#CRCascade" title="struct CRCascade"><span class="type">CRCascade</span></a>.</p>
<div class="refsect3">
<a name="id-1.2.4.6.5.5"></a><h4>Parameters</h4>
<div class="informaltable"><table width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>a_this</p></td>
<td class="parameter_description"><p>the current instance of <a class="link" href="libcroco-cr-cascade.html#CRCascade" title="struct CRCascade"><span class="type">CRCascade</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="cr-cascade-unref"></a><h3>cr_cascade_unref ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
cr_cascade_unref (<em class="parameter"><code><a class="link" href="libcroco-cr-cascade.html#CRCascade" title="struct CRCascade"><span class="type">CRCascade</span></a> *a_this</code></em>);</pre>
<p>Decrements the reference counter associated
to this instance of <a class="link" href="libcroco-cr-cascade.html#CRCascade" title="struct CRCascade"><span class="type">CRCascade</span></a>. If the reference
counter reaches zero, the instance is destroyed 
using <a class="link" href="libcroco-cr-cascade.html#cr-cascade-destroy" title="cr_cascade_destroy ()"><code class="function">cr_cascade_destroy()</code></a></p>
<div class="refsect3">
<a name="id-1.2.4.6.6.5"></a><h4>Parameters</h4>
<div class="informaltable"><table width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>a_this</p></td>
<td class="parameter_description"><p>the current instance of
<a class="link" href="libcroco-cr-cascade.html#CRCascade" title="struct CRCascade"><span class="type">CRCascade</span></a>.</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
</div>
<hr>
<div class="refsect2">
<a name="cr-cascade-destroy"></a><h3>cr_cascade_destroy ()</h3>
<pre class="programlisting"><span class="returnvalue">void</span>
cr_cascade_destroy (<em class="parameter"><code><a class="link" href="libcroco-cr-cascade.html#CRCascade" title="struct CRCascade"><span class="type">CRCascade</span></a> *a_this</code></em>);</pre>
<p>Destructor of <a class="link" href="libcroco-cr-cascade.html#CRCascade" title="struct CRCascade"><span class="type">CRCascade</span></a>.</p>
<div class="refsect3">
<a name="id-1.2.4.6.7.5"></a><h4>Parameters</h4>
<div class="informaltable"><table width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>a_this</p></td>
<td class="parameter_description"><p>the current instance of <a class="link" href="libcroco-cr-cascade.html#CRCascade" title="struct CRCascade"><span class="type">CRCascade</span></a></p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
</div>
</div>
<div class="refsect1">
<a name="libcroco-cr-cascade.other_details"></a><h2>Types and Values</h2>
<div class="refsect2">
<a name="CRCascade"></a><h3>struct CRCascade</h3>
<pre class="programlisting">struct CRCascade {
	CRCascadePriv *priv ;
};
</pre>
</div>
<hr>
<div class="refsect2">
<a name="CRCascadePriv"></a><h3>CRCascadePriv</h3>
<pre class="programlisting">typedef struct _CRCascadePriv CRCascadePriv;</pre>
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